Transform GitHub repos into evidence-based architecture blueprints with Claude
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 17 nodes and runs when an HTTP POST request hits its webhook URL (plus 1 other trigger). Along the way it connects Anthropic Chat Model and Slack.
How it runs
Trigger: When an HTTP POST request hits its webhook URL (plus 1 other trigger).
- Parse Owner and Repo (Code): runs custom JavaScript code
- Fetch Repo Metadata (HTTP Request): calls an HTTP API
- Fetch Repo Tree (HTTP Request): calls an HTTP API
- Identify Key Files (Code): runs custom JavaScript code
- Fetch Key File Contents (HTTP Request): calls an HTTP API
- Prepare LLM Input (Code): runs custom JavaScript code
- Analyze Architecture (Basic LLM Chain): sends a prompt to an LLM, with model: Claude 3.5 Sonnet
- Fix Markdown (Code): runs custom JavaScript code
- Generate Dashboard HTML (Code): runs custom JavaScript code
- Fetch Existing README (HTTP Request): calls an HTTP API
…plus 4 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (8)
- Webhook
n8n-nodes-base.webhook - n8n Form Trigger
n8n-nodes-base.formTrigger - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm - Anthropic Chat Model
@n8n/n8n-nodes-langchain.lmChatAnthropic - Slack
n8n-nodes-base.slack - Respond to Webhook
n8n-nodes-base.respondToWebhook
From the author
Requirements: GitHub API token (repo scope), Anthropic API key (Claude Sonnet 4.5), Slack Bot Token (optional) This workflow analyzes any public GitHub repository and generates an evidence-based architecture blueprint — with Mermaid.js diagrams, technical…